Method for determining signal quality in dual sensor seismic streamer signals

A method for seismic surveying, comprising:

• towing at least one seismic streamer at a selected depth in a body of water, the streamer including pressure responsive sensors and motion responsive sensors;
• actuating a seismic energy source in the water at selected times;
• recording signals detected by the pressure responsive sensors and the motion responsive sensors;
• cross ghosting the pressure responsive seismic signals and the motion responsive seismic signals;
• determining first filters that cause the cross ghosted pressure responsive signals to substantially match the cross ghosted motion responsive signals and second filters that cause the cross ghosted motion responsive signals to substantially match the cross ghosted pressure responsive signals;
• convolving the first and second filters;
• and
• using the convolution to determine signal quality.